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JPL Small-Body Database Browser
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91087 (1998 FO120)
Classification: Main-belt Asteroid          SPK-ID: 2091087
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1393529858290206 6.6662e-08  
a 2.657235984591813 1.604e-08 au
q 2.286942216086627 1.807e-07 au
i 11.89457709971705 6.3519e-06 deg
node 355.3860283354412 2.4418e-05 deg
peri 145.8047824510664 3.1063e-05 deg
M 68.66608223689194 1.8829e-05 deg
tp 2458698.724913542412
(2019-Aug-03.22491354)
8.164e-05 TDB
period 1582.135278228584
4.33
1.4325e-05
3.922e-08
d
yr
n .2275405933701631 2.0603e-09 deg/d
Q 3.027529753096999 1.8275e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8007 days (21.92 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58249  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:23:05  

Additional Information
 Earth MOID = 1.30829 au 
 Jupiter MOID = 1.9928 au 
 T_jup = 3.343 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456363.5 (2013-Mar-12.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1400169579666216 6.6725e-08  
q 2.285228021631145 1.8116e-07 au
tp 2457117.952159924512
(2015-Apr-05.45215992)
7.6546e-05 TDB
node 355.4219466841225 2.4435e-05 deg
peri 146.1517557660117 3.0962e-05 deg
i 11.89163433501713 6.3501e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      8007 days (21.92 yr)  
   first obs. used      1998-02-27  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58249  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:23:05  

Additional Information
 Jupiter MOID = 1.9928 au 
 T_jup = 3.343 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.452267297172697E-15 -1.20544608199097E-14 7.931799719019219E-13 -1.033772249888769E-14 3.609723422469264E-13 -2.587507034532839E-14
q -1.20544608199097E-14 3.281898051963868E-14 -1.877947076926287E-12 2.875291995208715E-14 -9.362422883299186E-13 7.151470031894482E-14
tp 7.931799719019219E-13 -1.877947076926287E-12 5.859261955697976E-9 1.01465419142032E-12 1.459472913630135E-9 4.622126813945017E-12
node -1.033772249888769E-14 2.875291995208715E-14 1.01465419142032E-12 5.970647553929858E-10 -5.838200733230973E-10 -4.085591745379764E-11
peri 3.609723422469264E-13 -9.362422883299186E-13 1.459472913630135E-9 -5.838200733230973E-10 9.586267014047479E-10 4.016452089386087E-11
i -2.587507034532839E-14 7.151470031894482E-14 4.622126813945017E-12 -4.085591745379764E-11 4.016452089386087E-11 4.032365896932553E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO385377  
diameter diameter 5.309 km 0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91087 (1998 FO120)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 FO120 = 2000 SZ58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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